// Copyright 2025 International Digital Economy Academy
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

///|
test "unsafe_pop_front after many push_front" {
  let dq = new()
  for i in 0..<10 {
    dq.push_front(i)
  }
  for i in 0..<10 {
    dq.unsafe_pop_front()
  }
  assert_eq(dq.head, dq.tail)
}

///|
test "truncate zero" {
  let dq = of([1, 2, 3])
  dq.truncate(0)
  inspect(dq.len, content="0")
  assert_eq(dq.head, dq.tail)
}
